Eye dropper



April 26, 1932. D. G. -a1-RAUS@ EYE DRQPPER Filed June 20. 1930 mvENTo ATTORNEY Patented Apr. 2.6, 17932' UNITED STATES DONALD G. s'rRAUss, orfroivtrrcg-ivrrgrrrenn EYE DROPPER Application filed .Tune 20,

the one requiring treatment, without diiii- "jlnflthle 'dra culty and without likelihood of introducing into the eye too great a quantity of the lotion. It is awell known fact that most people ind diiiiculty in properly supplying lotion to their eyes by the use of an ordinary medicine dropper embodying merely a glass tube having a reduced nozzle end, and a rubber bulb at the other end of the tube, and therefore the present invention contemplates the provision of a device so constructed that the pressure exerted upon the rubber bulb, constituting a part of the device, will effect the delivery from the nozzle of the device of a few drops of the lotion which is contained in ka bottle constitutinga part of the device, thus enabling the user to employ the device by standing in front of a mirror.

Another object of the invention is to pyrovide an eye dropper by the use of which eye lotion or solution may be supplied to the outer corner of the eye and thereby flow across the eye ball to the inner corners of the eye, where the lachrymal ducts are located, and which ducts drain the eyes, so that the invention contemplates a device by which an eye lotion may be more properly applied and in a manner to obtain the best results, than by the use of the ordinary dr-opper.`

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings, and specilically pointed out in the appended claim, it being understood of course that minor changes may be made so long as they fall within the scope of the claim.

In describing my invention in detail, reference will be had to the accompanying drawings, wherein like characters denote like or corresponding parts throughout the several views, and in which:-

Figure 1 is a vertical sectional view sanas :sanseefafuarapsai that the lotion or the like contained in them" bottlemay flow into the tube until the level olf the lotion is the same as that in the bott e. a

The branch 5 of the tube is formed with ,70 a laterally directed extension 9 which is re-'fy duced in diameter at its outer end asindi cated by the numeral 10, the bore of the tube being likewise reduced throughout the length of this portion 10 so that the lotion deliveredWr'5 from the small nozzle, which is in this man` ner provided, will issue therefrom in drops, thereby enabling the userv to determinethe precise amount of the lotion to be discharged 7 Y by the use of the device. .80

The branch 6 of the glass tube is formedu" with an upward and lateral extension 11 which is slightly exteriorly 'enlarged atits end as at 12, and a soft rubber bulb 13 is itted at one end to this extension and is prox."S5 vided at said end with a bore 14 in communi-m cation with the corresponding end of the bore of the tube. Y .Y

A vent opening 15 is formed inthe outer end of the bulb 13 and preferably flared, and .9G the wall of the bulb, at this end, is somewhatum thicker than at the body portion of the bulbL so that, when pressure is exerted upon the bulb, the opening 15 will be closed, so as to trap Within the bulb, the air therein. f5

When pressure is applied to the walls of the bulb 13 'the initial pressure closes the opening 15 and the air which is trapped with` o in the bulb 13 is forced by the inal pressure into the tube 6. The liquid which has passedmln?) intothe lower portionV ofthe tube 6 through the opening 8 is forced by the air pressure through the tube and the outlet'nozzle end. The liquid will follow this course for the reason that it is along the line of least resistance and the liquid will not How back through the opening 8 into the bottle l` for the reason that the bottle is closed at its mouth by the cork and the internal pressure is sufrci'ent to pre? vent the liquid from Vpassing*from the tube through the opening 8 into the bottle.

What I claim is A liquid dropper comprising av "bottle, a

closure for the mouth of the bottle, a U- shaped Vtube `having its branches passing transversely through the closure, the'tube be-V ing provided inpIthe vicinity of its Yinterr'n'e- Vdiate bend with an ropening adapted to be submerged below the level or" theliq'ui-d-'in thev bottle when the Closure is 'applied tothe mouth of the bottle, the branches of the tube v having substantially oppositely disposed end portions one of which is provided with a nozzle extremity and abulb applied to the other end of thetube and having an air inlet opening located approximately in alignmentwith 

